Two years ago when Walsh — the lawmaker — first ran for Congress, he borrowed a song by the other Walsh called “Walk Away” and changed the lyrics. The move prompted the musician’s attorney to send a tongue-in-cheek letter to Walsh's campaign:

“You’re not allowed to take someone’s song and change the lyrics,” the attorney wrote. “This is not to say you’re not allowed to write silly lyrics, you just have to write them to your own music. Now, I know why you used Joe’s music — it’s undoubtedly because it’s a lot better than any music you or your staff could have written. But that’s the point. Since Joe writes better songs than you do, the Copyright Act rewards him by letting him decide who gets to use the songs he writes.”

Rep. Joe Walsh (R-Ill.) (Manuel Balce Ceneta/AP)

Adding to the buzz, Walsh — the musician — plans to perform a special concert for Duckworth’s campaign on July 1 in the Illinois 8th Congressional District, an area encompassing Evanston, a suburb north of Chicago.

Tammy Duckworth. (M. Spencer Green/AP Photo)

The Sun-Times also noted that the musician Walsh employs Ari Emanuel as his agent. It just so happens that Ari Emanuel is the brother of Rahm Emanuel, the Chicago mayor and former congressman who backed Duckworth’s first and ultimately unsuccessful 2006 congressional campaign.

And, if you’re wondering, no, Duckworth has no current plans to use supporter Joe Walsh’s name or image in any campaign literature — or to use any of his music. At least not without asking his permission first.